.upload-drop-zone {
    border: 2px dashed #9e9e9e;
    padding: 32px;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    transition: all .2s ease;
}

.upload-drop-zone.dragging {
    background-color: #f5f5f5;
    border-color: #1976d2;
}

.upload-drop-zone {
    transition: all 0.3s ease;
    border: 2px dashed transparent;
    border-radius: 8px;
    padding: 8px;
}

.upload-drop-zone.dragging {
    background-color: rgba(33, 150, 243, 0.08);
    border: 2px dashed #2196F3;
    transform: scale(1.02);
}

.upload-drop-zone .mud-paper {
    transition: all 0.3s ease;
}

.upload-drop-zone.dragging .mud-paper {
    box-shadow: 0 8px 16px rgba(33, 150, 243, 0.2) !important;
}

.upload-drop-zone .gap-2 {
    gap: 8px;
}